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Sea swims in August 2025

Find sea swims in August 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Take on a challenge like no other as you swim a marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
  • Fri 1 Aug
  • FREE
  • Fri 1 Aug
  • FREE
Anywhere

Swim Marathon | 26 miles

Take on a challenge like no other as you swim a marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.

  • Enter online
  • Fundraising required
  • All ages
  • 26 miles pool swimming
Take on a challenge like no other as you swim a half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.
  • Fri 1 Aug
  • FREE
  • Fri 1 Aug
  • FREE
Anywhere

Swim Marathon | 13 miles

Take on a challenge like no other as you swim a half marathon distance over 12 weeks and lift your health, wellbeing and fitness to the next level.

  • Enter online
  • Fundraising required
  • All ages
  • 13 miles pool swimming
A supported half-a-mile or one-mile sea swim, ideal for people new to sea swimming, from South Milton Sands, with a full safety team and part of the Something Wild Festival Weekend.
  • Sat 30 Aug
  • £40
  • Sat 30 Aug
  • £40
Kingsbridge, Devon, UK

The Rock Hard Coast Sea Swim

A supported half-a-mile or one-mile sea swim, ideal for people new to sea swimming, from South Milton Sands, with a full safety team and part of the Something Wild Festival Weekend.

  • Chip timing
  • Enter online
  • Age 13 & over
  • 1.5 miles sea swimming
The swim-only event of the renowned Brighton and Hove Triathlon from the famous seafront promenade! Open water swimmers can soak up one of the biggest events in the triathlon calendar.
  • Sun 31 Aug
  • 1 charity
  • Sun 31 Aug
  • 1 charity
Brighton, East Sussex, UK

Brighton and Hove Triathlon | 1500M Swim

The swim-only event of the renowned Brighton and Hove Triathlon from the famous seafront promenade! Open water swimmers can soak up one of the biggest events in the triathlon calendar.

  • Chip timing
  • Enter online
  • Age 15 & over
  • 1500 m sea swimming

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